USRE4196E - Improvement in tuck-creasing devices for sewing-machines - Google Patents

Description

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i JAMES BOLTON, or calorico, ILLiNOis, AssleNOn Torun siNenR MAN- UFAOTURING COMPANY.

Letters Patent No. 46.871. dated March 21, 1865; reissue No. 4,196, dated December 13, 1870.

The Sohedulelrefen-ed to in these Letters Patent and making peut of the same.

To all wlm'm tt may concern Be it known that I, JAMES BOLTON, O- Chicago, in the county of Cook and State of Illinois, have made an invention of a new and improved Tuck-Marker or Creaser for Sewing-Machines; and I do hereby declarel that the following is a full, clear, and exact description thereof. v

Previous to my invention the cloth sewed in a sewing-machine has been creased foi-the formation of a tuck by the jointaction of a blunt knife-edge Orspur, und a fork, the creasing being` eiected by nipping the cloth between the said two instruments by the reciprocating movement of one of them relatively to the other. The-objects of my invention are to enable such creasilig-instruments to be readily applied to and disconnected from a sewing-machine; also to enable the two creasing-instruments to bel adjusted simultanc-: ously, and to permit 'the movable creasi11g-instrument to be -adjusted at any desired distance from the needlel without breaking. its connection withuthedpart of the' sewing-machine that imparts movement to it; to this end M y invention. consists of a creasing tuck-marker, consisting of-a blunt knife-edge or spur, a cloven foot or fork, and a stock, the whole combined so as to constitntc a complete implement or attachment for a sewing-machine, having its members permanently counected witheach other, so that the two creasing-instruments can be adjusted simultaneously in any desired position relatively to the needle, and that the implement'ean' be readily secured to and disconnected from the sewing-machine.

My invention consists furtherof the combination of the movable member of a tuck-marker with al sliding bracket, which being secured to a reciprocating part -of a sewing-machine, permits the arm of the said movable member 'to be slid through it (said bracket) and adjusted without the necessity of being disconnected from the said reciprocating part.

In order that my invention may be fully understood, I have represented in the accompanying drawing and will proceed to describe a tuck-marker embodyingr my invention in the best form known to me atthe date of my invention.

Figure 1 is a side elevation of the tuck-marker and of the adjacent parts of a sewing-machine .to which said implement is applied.

Figure 2 is a transverse sectional .view of the saine taken behind or to the right of the presser-bar in fig. 1. Figure 3 is a plan of the tuck-marker.

The same letters of reference indicate the same parts in all the figures.

The tuck-marker consists essentially of two creasthe sewing-machine.

required distance from the needle.

-.for this lpurpose is a hinge pivot, c.

- a blunt knifeedge or spur, land the other, d, has the form of a cloven foot or fork, the cleft of which is directly opposite the spur n, so that thecloth is creased or-marked by being pressed into the cleft'of the foot or fork by the blunt edge of the spur. These two instruments are combined with the stock g, whose under side is at so that it may lie upon the table of One of the instruments, the spur n, in this instance, is rigidly connected with the stock g by :n.beut arm Ac so that' theuspur may be operating at one'side of' the needle while the stock g is `at the opposite side thereof, and the connecting-arm e' f, is suiiiciently long: to permitthe-cloth to be creased at thegreatest.

The other instrument, the cloven foot d, in this inst-ance, is connected with'the stock g in such manner that the said'instru- @ment may be moved toward and from the first instrument; and the means of connection which I pie'er 'lhe stocky is` perforatedto permit the passage of a clampscrew, t, by means of which the implement may be secured to the table of the sewing-machine, and the construction of the perforation iu-.the form of a slot, h, permits the implement to beset with its creasing-instruments at a greater or lesser distance from the needle, as'required-to mark a tuck of greater or lesser breadth.

As the three members before described, viz, the blunt knife-edge or spur, the cloven foot or fork, and the stock, are all permanently connected together, they-constitute a complete implement or attachment for a sewing-machine, which can be readily applied to and removed from it without changing the relationship of the members `of which it is composed.-

In order that the two creasing-instruments may be intermittently separated and caused to approach'each other, the upper one, d, is connected with some reciprocating part of the sewing-machine and, when said machine has a four-motion reciprocating fe'ed, the part that l prefer to make the connection with is theshank B of the presser-foot, or the presser-bar, as it is sometimes called. In order that the trick-marker may be readilyadjusted-to different positions, notwithstanding its connection with the reciprocating part of the sewing-machine, the connection is made bymeans of a slotted bracket, k, having a slot, o, of suticicent size to permit the arm la of the movable member al to slip readily through it.

' The bracket is also perforated to permit the passage of a screw, r, by means of which the bracket is secured to the reciprocating part of the sewing-machine, and I prefer to form theiperforation for this purpose -in the form of an open slot, g, so as to enable me to secure the bracket la to the sewing-machine without .withdrawing the clamp-screw @and to set the bracket at any desired height -onthe presser-banaecording to -the lateral adjustment of the tuck-marker upon the table or bed-plate for the width of the tuck. When the bracketrk isxed to the presserbar, the arm b of 'the marker being'earried in said bracket, reciproeates with the presser-bar; that is,when the marker is used 'on a-sewing-macbine, which has a reciprocating-feed,

the'fork or foot d of the marker is raised off the fmaterial with the risingof the presser-bar, and afterward borne down by the said bar and pressed upon the lma-v terial while the needle -is making another stitch,lthe

material being crimped between the cleft in the fork d and the spur n, so ythat the place, for the tuckis markedstep by step `in a line parallel with the seam' or perforations by the needle.

lhe width of the tuck is determined by the adjust` ment of the two creasing-instruments simultaneously to a greater or lesser distance from the needle by ad justing the attachment on thefbed-plate. Y

A gauge to guide the edge'of the material may bc made, if desired, along the edge p of thestock g of the tuck-marker;but it willbefound most convenient to use an independent gauge, j, whiehmay be slecured to the sewing-machine above the stock g of the tuck-marker-by the same set-screw, @which secures the' marker ,to the table.

l hen a narrow tuck is to be made, the spur'and fork aremoved to the rghta suitable distance, and the extent of the reciprocatingmovement of the fork, or, in other words, the extent ofits vibration is correspondingly lessened, according to the'distace ofthe fork from the presser-arm.y The movement imparted tothe fork by the presser-'bar when the "former is near the latter and is marking vfor a narrow tuck, is sueient-for successful operation, because the material which is being sewed is held andadvanced smoothly beneath the fork-for av considerable distance to one side of thc line of sewing by the joint operation of the feeding devices and the needle but when the tuck is to be wide, the extent of the vibratingmovement of the moving creasinginstrument needs to be greater, because that portion.l of the material which lies at a, consider. ble distancev at one sideof the seam-has a tendency to drag or lag behind the advance of the seam, unless it is held ex.-4

tended and smooth by the hand of the operator or by some other means. It is therefore expedient that the moving creasing-instrument be raised sufficiently at each movement of the feed to clear the material.

'This is accomplished bymy invention, because the adjustment of the implement upon the bed-plateof the machine places the joint of the movable arm b at` a lesser or greater distance from the slotted bracket k,

and consequently the same reciprocating movement of the bracket causes the movable creasing-instru@` ment to rise reci'procally more or less. t

What I claim as my invention, and desire toy secure by Letters Patent, vis- 1. Y. The creasing tuck-marker hereinbefore described,

consisting substantially of the spur, the fork, and the i stock, alll permanently connected, so as to constitute a removable attachment for sewing-machines.

2. rlhe combination' of the `arm of the. movable member of a tuck-marker with a movable bracket, by which the said arm may be connected with a reciprocating -member of the sewing-machinefsubstantially as before set forth. v

In testimony whereof, l have hereto set my hand this 12th day'of September, 1870.

' JAMES BOLTON.

Witnesses:v

H. N. ELDRIDGE, F. W. ToUn'reLLorrn.

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